/Engine/Plugins/Runtime/nDisplay/Source/DisplayCluster/Public/Render/Projection/IDisplayClusterProjectionPolicy.h
Initializing the projection policy logic for the current frame before applying warp blending. Called ifIsWarpBlendSupported()returns true
virtual void BeginWarpBlend_RenderThread ( [FRHICommandListImmediate](API\Runtime\RHI\FRHICommandListImmediate) & RHICmdList, const [IDisplayClusterViewportProxy](API\Plugins\DisplayCluster\Render\Viewport\IDisplayClusterViewportProxy) * InViewportProxy )